program bintangnazi;
var
  baris,kolom,n : integer;
begin
readln(n);
for baris := 1 to n do
      begin
        for kolom := 1 to n do
          begin
            if (baris = 1) and (kolom <= n div 2+1) then
              write('*')
            else if (baris = n) and (kolom >= n div 2+1) then
              write('*')
            else if (kolom = 1) and (baris >= n div 2+1) then
              write('*')
            else if (kolom = n) and (baris <= n div 2+1) then
              write('*')
            else if (kolom = n div 2+1) or (baris = n div 2+1) then
              write('*')
            else
              write(' ');
          end;
        writeln;
      end;
    readln;
end.